Typewriter carriage



July 29, 1924. 1,503,100

DE WITT c. HARRIS TYPEWRITEH CARRIAGE Filed sept! l., 1921 4 Sheets-5119, 1

Ilmlmln July 29, 1924 DE wlTT c. HARRIS TYPEWRITER CARRIAGE Filed Sept. l. 1921 4 Sheets-Sheet 2 July 29 1924.

Y 1,503,100 DE wrr'r c. HARRIS TPEwRITER CARRIAGE Filed Sept. 1. 1921 4 Sheets-Sheet 3 lg 'H $.9`l l mf N l :1IQ 1 y Y I w cw w QZ; N

la K l i I -f f I l f l, I 'J 3 M3 v 0 -2- N b l 'NY Qs 111" i" H n d l@ zdefzoz/ Y iam )il Q I @H Wg/Mzfzw zDE wlTT c. HARlls TYPEWRITER CARRIAGE Filed sept.

July 29, 1924.

1x. 192) 4 Sheets-Sheet 4 Patented July 29, ieee.

*"-fflttgieef PATENT OFFICE.

DE WITT CLINTON nanars. on PINELAND, FLORIDA.'

'rYrnwnrrnn cARnIAGE.

Application med september 1, i921. serial No. 497,648.

To aZZ- whom it may concern.'

Be it known that l, DE WITT C. HARRIS, a citizen of the United States, residing at Pineland, in the county of Lee and State of Florida, have invented' certainnew and useful Improvements in Typewriter Can,

riages, of which the following is a specification. y

The object, of this invention is to provide a typewriter carriage of improved construction in which'the parts are ofsimple form, rand are inexpensivevto manufacture; in which the parts are so related and arrangedthat they maybe quickly and easily assembled together; in wliichaccuracy in ,assembling is assured,,eveny in the'hands of workmen not specially skilled in the art; in which the papery feedv rollsL andother partssubject to wear or which lmay need attention from time to time may bev quickly and easilyrremoved without theausemof special tools.; in which the paper feed rollslaremounted in such a manner as toinsureeective clamping of the .paper nagainst the platen at all points; which fwillfjaifoiid" maximumy efficiency and durability injyuse' with a minimum cost of. manufacture and maintenance; and which v.is mounted inthe machinein such a manner thatit may be very readily removed from themachine when desired.

ln the accompanying drawings, Figure 1 is a front elevation of the carriage andk associatedparts of a typewriter.embodying the features of my invention.V

Fig. 2 is a fragmentary front elevationl on an enlarged scale showing the paper panV and feed rolls.l

Fig. 3 is an enlarged vertical sectional View taken ina plane running fromfront Y to rear through the carriage and` associatedV parts of the typewriter.

Fig. l is a plan view with certain parts omitted and certain partsl brokenv away to show other parts beneath.

Fig. 5 vis a perspective view ofthe main. bracket which supports the feed roll cari-j riers.

Fig. Gis a perspective view ofoneirofithef front feed roll carriers.

Fig. l lis an elevation ofthe'left hand end of the. carriage:

Fig. 8 is a'view showing the pla-ten,and

kthe feed roll mechanismv inend elevation.'V

For the purpose of disclosing the invention herein I have selected a preferred embodiment but I would have it understood that in describingthis particular form of the invention l do notintend to limit the invention in any wayv to the present disclosure but aim to cover all modiications, equivalents and alternative constructions falling withinthe scope of the invention as rand rigidly securedtogether by a plurality of parallel bars 11,12, 13,4 145;

he bar 11 hasfascale on its upper side and carries two adjustable marginal stops 15. The bar 12 carries` a suitable number of tabular stops 16 having lingers to cooperate with the scale strip 17 fixed on the upperV side of the bar 13. The bar 1li supports a pair of slides 18 carryingV pivotedv paper fingers 19 which cooperate with the platen-2O.k 1

Y.The carriage is supportedand guided up'- on the-main track bar 21 by means of a suitable number of ball bearing supportsl 22 fixed to the forward fa ce of the bar 13. This ball bearing supporting means constitutesthe subject matter of ay co-pending applica` tion, and need not bek described in detail herein.. A bracket 23 is fixed to the rear faceV of the ,bar 11 and carries a-'pair of rollers Qd'projecting rearwardly and embrac-v inga guide bar 25 which is rigidly. mounted on the main frame of .the typewriter.

The platen 2O has acentral shaft 27 which 'isjournaled in notchesQS extending down- .'tined in4 its notch by means of a bearing` blockcarried by an arm 29. whichv is'pivotedatBO (see Fig. 7) ontheforward edge ofthe end plate and extends rearwardly `along. the. `upper edge of such plate, the yarm being formed ofa folded piece of metal varranged to receive the upperv edgel of the plate between its two sides.: :The rearend ofthe arm is arranged. to be locked, by a latchl pivoted at vitslowerfendA tof the end plateV 10.

feed roll shaft 38.

Beneath the platen is a bracket 32 (see Fig. 5) which is secured at its rear edge to the underside of the bar 13 by screws 33, the forward edge of the bracket being secured to the bar 14 in this instance by lugs 34, on the bracket entering milled slots in said bar 14. At intervals along its length this bracket has perforated ears turned up therefrom, there being in the Present instance three pairs of such ears near the forward edge of the bracket, and in each pair of ears is mounted a short shaft 36. A plurality of forward feed roll carriers 37 (see Fig. 6) engage at one end with the shafts 36 and support the shafts 38 of the feed rolls 39 at their free ends. Each carrier comprises two. sides and a cross-piece 'connecting them. Each side has upwardly opening notches 40 and 4l to permit the carrier to engage the underside of its shaft 36 and to receive the These shafts 36 and 38 have headed ends which overlie the edges of the notches 40 and 41. Each feed roll comprises a rubber body with a central metallic sleeve that receives the shaft 38. The cross-piece of each carrier 37 has a rearwardly extending lug 42 the purpose of which will presently appear.

The bracket 32 is provided with a second series of upstanding ears 43 which receive a rock shaft 44 that has its ends journaled in the end plates 10. This rock shaft has three keys 45 which underlie the lugs 42 on the forward roll carriers 37. When this shaft is rocked in the direction to elevate the keys 45 the three roll carriers 37 will be swung downwardly about the rods as axes to separate the feed rolls from the platen 20. Coiled compression springs 46 are provided for each feed roll carrier and are arranged to-abut against the carrier at one end and the bracket at its other end, suitable fixed studs 52 being provided to engage in the ends of the spring for holding `the springs in place.

The rear feed rolls 47 are mounted on a single shaft 48 which is supported in a carrier 49 comprising two sides and a 'crosspiece similar to the forward carriers 37 (see Fig. 8). The sides are provided with notches in their forward ends to engage beneath the rock shaft 44 and other notches at their rear or upper ends to receive the shaft 48. The sides of the carrier lit snugly between the two middle ears 43 which act to hold the carrier in place. rIhe rear car rier 49 also has a forwardly projecting lug 50 overlying the central key 45 and springs 5l abut at their ends against the carrier and the bracket 32 respectively, said springs tending to hold the rear feed rolls against the platen, and` being secured at their ends by studs 52 secured therein.

On one end of the rock shaft 44 is a crank arm 53 (see Fig. 7 having a roller stud 54 on its free end which engages in a cam slot 55 in a lever 56 that is pivoted at 57 to one of the end plates l0. When the lever 56 is swung upwardly and forwardly to the position indicated iny dotted lines in Fig. 7 the keys 45 on said rock shaft will by engagement with the lugs 42 and 50 on the roll-carriers swing said carriers away from the platen and hold them in separated position.

A curved paper pan 58 which directly underlies the platen has a depending bail 59 which passes around one of the forward roll carriers so that when the roll carriers are moved away from the platen the said paper pan will also be moved away. This paper pan has suitable spaced apertures to permit the front and rear feed rolls to project therethrough into engagement with the platen. The rear portion of the paper pan has ears 60 projecting rearwardly (see Fig. 8) and perforated to receive the shaft 48 for the rear feed rollers.

The paper shelf 6l is carried by a pair of arms 62 which lie along the inner sides of the end plates l() and the platen securing arms 29 and are pivoted upon the saine pivots 30 as are the said arms 29. This paper shelf may be swung from the position seen in Fig. 3 upwardly and forwardly about the pivots 30 to a position in front of the platen; and by releasing the latches 3l the arms 29 may be similarly swung so as to permit of lifting the platen out of its bearing notches 28 in the end plates 10.

I claim as my invention:

l. A typewriter having, in combination, a

carriage frame, a platen liournaled therein, a bracket rigidly mounted in said frame beneath said platen and having a plurality of alined pairs of upstanding ears along its forward edge and aplurality of alined upstanding ears positioned rearwardly from the first mentioned ears, a plurality of forward feed rolls, means for mount-ing each of said feed rolls comprising a carrier having two spaced parallel sides and a connecting cross piece, said sides having upwardly opening notches in opposite ends, a shaft `journaled iii a pair of said forward ears, one

Vpair of said notches engaging saidmsliaft from beneath, another shaft journaled in the other pair of said notches and having one of said feed rolls mounted thereon, a rock shaft jo'urnaled in said frame rearward from the forward ears and having a plurality of laterally projecting keys thereon, a rear feed roll carrier comprising spaced sides and a connecting cross piece, said sides having notches at their opposite ends, the forward pair of notches engaging beneath the said rockV shaft, a shaft mounted in the rear pairof said notches, a plurality of rear feed rolls mounted on the last mentioned shaft, springs associated with said forward and rear feed-roll-carriers and tending to hold the rolls against the platen, af lug on each of said carriers overlapping one of said keys on said rock shaft, said keys being arranged to engage said lugs and swing said feed roll carriers away from the platen when said rock shaft is rocked, and means for rocking said rock shaft.

2. A typewriter having, in combination, a carriage frame, a platen journaled therein, a bracket rigidly mounted in said frame beneath said platen, a plurality of independent feed-roll-carriers each of which has notches at its rear end engaging pivots on said bracket and also has notches at its forward end, a sha-ft for each carrier mounted in said forward notches, a feed roll mounted on said shaft for each carrier and arranged to engage the platen, springs tending to move said carriers toward the platen, a rock shaft having lateral projections engaging parts on the respective carriers and arranged to swing the carriers away from the platen, and means for rocking said rock shaft.

3. A typewriter having, in combination, a carriage frame, a platen journaled therein, a bracket rigidly mounted in said frame beneath said platen, a plurality of feed-rollcarriers independently pivoted 4at their rear ends to said bracket, feed rolls mounted in the forward ends of said carriers and arranged to engage the platen, a singlerear feed-roll-carrier pivoted at its forward end to the said bracket, a shaft mounted in the rear end of said carrier, a plurality of feed rolls on said shaft, a rock shaft having lateral projections arranged to engage parts on all of said carriers to move all of the carriers away from theplaten, springs tending to move the carrier toward the platen, and

means for rocking` said shaft.

(l. A typewriter having, in combination, a carriage frame, a platen journalle'dttherei-n, a bracket fixed in said frame beneath said platen, a feed roll carrier having two spaced parallel sides and a connecting cross piece, each of said sides having upwardly opening notches in its opposite ends, a pivot mounted on said bracket and engaging the notches lon one end of said carrier, a feed-roll mounted in the, notches on thc other end of said carrier, a spring engaging said cross piece and said bracket and tending to swing said carrier toward said platen, and means for swinging said carrier away from said platen.

5. ln combination, a platen, a stationary bracket, a plurality of pivot devices on said bracket, a plurality of feed-roll-carriers each comprising spaced parallel sides and a connecting cross piece, said sides having a pair of notches engaging said pivot devices and having another pair of notches, a shaft mounted in the second pair of said notches, a plurality of feed rolls each mounted on one of said shafts between said sides of the carrier, 'springs tending to move said carriers independenftly toward the platen, and means for simultaneously swinging said carriers away from the platen.

6. A typewriter having, in combination, a carriage frame, a platen journaled therein, a bracket fixed in the frame beneath said platen,a plurality of feed-roll-carriers each having two pairs of open end notches, one pair detachably engaging pivot means on said bracket, and feed rolls journaled respectively in other pairs of said notches, whereby the said feed rolls may be readily remove-d from said carriers and the carriers may be readily assembled with or disen gaged from said bracket.

7. A typewriter carriage comprising, in combination, a frame having end plates with upwardly opening notches therein, a platen having a shaft journaled in said notches, arms pivoted to said end plates at the forward upward corners thereof and extending rearwardly along said end plates to overlie and close said notches, latches detachably securing the rear ends of said arms to said end plates, a paper shelf behind said platen, a pair of arms extending horiontally along the inner sides of said end plates above said platen shaft and having their rear ends secured to and supporting said shelf, the forward ends of the latter arms being pivoted to said end plates on an axis located forwardly of the platen whereby the paper shelf may be swung upwardly and forwardly to a position in front of the platen, the first mentioned arms being also capable of being swung upwardly and forwardly to uncover said notches and permit withdrawal of the platen and its shaft from the. frame.

8. A typewriter having, in combination, a frame, a platen having a shaft journaled therein, a paper shelf located readwardly of `V the platen, and a pair of arms on the rear ends of which said paper shelf is mounted, said arms extending forwardly from said shelf and being pivoted at their forward ends to the frame, whereby said paper shelf may be swung upwardly and forwardly to a position in front of the platen.

9. A typewriter having, in combination, a carriage frame, a platen journalled therein, a bracket rigidly mounted in said frame be neath said platen, a plurality of shafts mounted in alinement on, the front part of said bracket, a plurality of feed-roll carriers each mounted on one of said shafts, a rock shaft mounted on said bracket to the rear of said first-mentioned shafts, a feed-roll carrier mounted on said rock shaft, feed-rolls mounted on said carriers and arranged to engage said platen, means on said rock shaft for engaging and moving said feed-rolls away from said plate, and means for rocking said rock shaft.

l0, A typewriter having, in combination,

acarrage frame, a platen journalledthere# y carrier ftoward said p]aten, and. means enn, a xed pvot mounted Within sad'frame, gagng parte on said ealller' for swinging' 1'0- aee'd-rollpartiel' having notches atmone end `said carrier about said pvot away from Sad`` engaging said pVOt and yalso ham'fng-notehes-A pla-ten. x I 'k Y a wt its forward end, .21 shafvmoun'ted'n said v In testimony whel'eo Yhavehelelmfco Set" y L `f1Ward'n0tChes,a,feed-lollimoun-tedonlsaid my hand. y -1 shaft arranged te, Lengage )said platen, a j' l y '1' Spring engaging and tending t'o, v:move said DE VITT CLINTON HARRIS. 

